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Posted to issues@spark.apache.org by "Hyukjin Kwon (Jira)" <ji...@apache.org> on 2022/02/10 04:50:00 UTC

[jira] [Updated] (SPARK-38161) when clean data hope to spilt one dataframe or dataset to two dataframe

     [ https://issues.apache.org/jira/browse/SPARK-38161?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon updated SPARK-38161:
---------------------------------
    Component/s: SQL
                     (was: Block Manager)

> when clean data hope to spilt one dataframe or dataset  to two dataframe
> ------------------------------------------------------------------------
>
>                 Key: SPARK-38161
>                 URL: https://issues.apache.org/jira/browse/SPARK-38161
>             Project: Spark
>          Issue Type: New Feature
>          Components: SQL
>    Affects Versions: 3.2.1
>            Reporter: gaokui
>            Priority: Major
>
> when I am  processing  data clean, I meet such scene.
> one coloumn need judge by empy or null condition.
> so I do it right now similar code as following:
> df1= dataframe.filter("coloumn=null")
> df2= dataframe.filter("coloumn=!null")
> and then write df1 and df2 into hdfs parquet file.
> but when i have thousand condition. every job need more stage.
> I hope dataframe can filter by one condition once and not twice. and that can generate two dataframe.
>  
>  
>       



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